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Step By Step Schools

Step By Step Schools

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Class room trainings with step by step approach. We don't teach programming here, we create program All our trainers are Microsoft certified and most are MVP's.

Step By Step Schools is Mumbai based Software Training institute. Trainings will be conducted by Industry experts who have more than 10 years of experience as a software architect, as a project manager etc. All the courses conducted in Step By Step Schools are industry oriented and Project oriented. We wont guarantee job, we guarantee Job Preparation. Individual attention on every students, Mock Interview and Quality notes are our key points

25/04/2024

Many devs think singleton pattern means :- static keyword. Singleton is a pattern while static is a keyword.

To implement a proper singleton pattern we need to atleast have 6 things at place.
Below are numbered bullet points and check those numbered bullet points with image attached.

1. Whole part relationship: - The first thing needed in singleton is a root class through which all shared objects should be exposed. This root class instance should be created inside the class and it should be static.

2. Thread safety: - Whenever we are loading the singleton object use the “lock” keyword to make sure only one thread manipulates at a time or else we will have thread unsafe code.

3. Private constructor: - Make sure the root class can not be instantiated from outside.

4. Ensure root object is single instance: - use the double null check and make sure that only one instance is created and also lock is not executed unnecessarily.

5.Lazy loading implementation: - We would like to load the objects when demanded then loading it unnecessarily.

6.Performance for threading: - Let us see this point 6 how many devs can explain, how does it increase performance ?. Please comment in the comment section.

Happy learning.

22/07/2022

😊 Join the free webinar and learn about the lifecycle hooks of Angular on 23 July 2022.
🔗 Link to attend : https://tinyurl.com/9x2xxtmk




Calculation is SSAS (SQL Server Analysis Service) 12/01/2017

The error here occurred while doing the SSAS calculations. Error: Below image is the snapshot from SSAS cube where we are doing calculation and while we are dragging and dropping the measure & dimension fields we cannot see the calculations. There is a pre calculated script which is present when we make the cube and dimensions due to which we can see the basic calculations. [ 211 more words ]

http://stepbystepschools.net/?p=1387

Calculation is SSAS (SQL Server Analysis Service)

Aggregation transformation component in SSIS 12/01/2017

This is the scenario faced by a candidate when he had repeated values in his SQL Server records as shown in the image down below. If we try to run the package it will throw us an error, Error: The error says that the pivot key has a duplicate value. Solution: To solve this error we will add a new component on our SSIS package available from SSIS toolbox under transformationknown as Aggregation Transformation. [ 120 more words ]

http://stepbystepschools.net/?p=1376

Aggregation transformation component in SSIS

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